Wide-field subcutaneous dilator

A dilator and wide-view technology, applied in dilators, medical science, surgery, etc., can solve problems such as long reaming time, prolonging minimally invasive surgery time, minimizing adverse physical damage, treatment and rehabilitation, and protecting paravertebral muscles , the effect of extending the scope of surgery

Pending Publication Date: 2021-05-11
陈春美 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As is known, when performing minimally invasive operations such as spinal paravertebral or thoracic posterior paravertebral minimally invasive channel system treatment, it is necessary to incise a hole in the human body and expand the soft tissue at the incision so that surgical devices such as an endoscope can be removed from the body. The incision hole extends into the affected area. At present, most minimally invasive operations use multi-stage expansion sleeves to expand the tissue step by step. However, expanding the incision hole step by step leads to a longer reaming time, which in turn prolongs the minimally invasive surgery. time; and the existing expansion sleeve usually adopts a circular tubular structure, but usually only need to cut a long strip opening for the patient, and the long strip cutting hole is more convenient for postoperative suturing. The diameter of the expansion sleeve is longer and the incision of the strip is wider, resulting in the actual area of ​​the surgical incision of the patient being larger than the area required for the surgical operation, which is not conducive to the minimum treatment of the patient's physical injury and the later rehabilitation

Method used

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  • Wide-field subcutaneous dilator
  • Wide-field subcutaneous dilator
  • Wide-field subcutaneous dilator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] see Figure 1 to Figure 4 The wide-view subcutaneous dilator includes a base plate 11, an inner tube 1 and an outer tube 6 fixedly arranged on the base plate 11, a chute 2 arranged between the outer tube 6 and the inner tube 1, and an integral body with the outer tube 6 The connected first fixed piece 3 and the second fixed piece 5, the expansion tube 8 which slides up and down in the chute 2, the first connecting plate 10 and the second connecting plate 13 respectively arranged on both sides of the bottom of the expansion tube 8, the second A connecting plate 10 and a second connecting plate 13 are respectively fixed with a first expansion piece 9 and a second expansion piece 12; the top surface of the bottom plate 11 is provided with a slot 16 for engaging the expansion tube 8, so Both sides of the bottom of the expansion tube 8 are...

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Abstract

The invention relates to a wide-field subcutaneous dilator, which comprises a bottom plate, an inner pipe and an outer pipe fixedly arranged on the bottom plate, a sliding groove arranged between the inner pipe and the outer pipe, a first fixing piece and a second fixing piece which are connected with the outer pipe integrally, an expansion pipe is arranged in the sliding groove and capable of sliding up and down, a first connecting plate and a second connecting plate are respectively arranged on two sides of the bottom of a expansion tube, a first distraction piece and a second distraction piece are respectively fixed on the first connecting plate and the second connecting plate; the top surface of the bottom plate is provided with an inserting groove used for clamping the expansion pipe, and the two sides of the bottom of the expansion pipe are connected with the first connecting plate and the second connecting plate in a slope type tangent structure respectively.

Description

technical field [0001] The invention relates to a wide-view subcutaneous dilator, which is applied in the field of medical surgery. Background technique [0002] As is known, when performing minimally invasive operations such as spinal paravertebral or thoracic posterior paravertebral minimally invasive channel system treatment, it is necessary to incise a hole in the human body and expand the soft tissue at the incision so that surgical devices such as an endoscope can be removed from the body. The incision hole extends into the affected area. At present, most minimally invasive operations use multi-stage expansion sleeves to expand the tissue step by step. However, expanding the incision hole step by step leads to a longer reaming time, which in turn prolongs the minimally invasive surgery. time; and the existing expansion sleeve usually adopts a circular tubular structure, but usually only need to cut a long strip opening for the patient, and the long strip cutting hole i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M29/00A61B90/00
CPCA61M29/00A61B90/02
Inventor 陈春美庄源东王锐江研伟陈琰谢海树郑师兴陈萍萍吴剑锋刘仕超周茂超梁泽燕王者惟陈鑫垚徐雄杰王殷庆涂松杰吴建阳蔡然泽赵伟沈超雄蔡昭文林定陈楠
Owner 陈春美
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